Many people here will say "my host" because they haven't had any real issues with them. But just because you didn't have problems with them yet doesn't mean tons of other people haven't.
I believe Bill from natnet was recently talking about how it's damn near impossible to keep your sites up 24/7 unless you have them hosted at two tier 4 datacenters. Well unless I'm mistaken here natnet site says their datacenter is tier1 standards. Which I'm sure is fine most of the time but if that's true than it's not the best of the best host.
No pun intended to natnet, I use them because they matched a price to my previous host that had slow support.
Looks like you can see the tier standards here...
http://www.datacenterdynamics.com/Me...sification.pdf
I'd be surprised if any of the other "top adult host" listed have a tier 4 datacenter either. Not that's all that matters, if the support sucks or a ton of other things then the service probably sucks too.
I wonder how many of these "top adult host" can handle a big DDOS attack too. Many host out there cannot handle one, I'd bet these top adult host can't either. Maybe they can get it under control after some serious downtime but then again maybe not if it's your site, some host won't host your stuff if you get hit.
So if I had to take a wild stab at it, I'd say softlayer.com. They can handle DDOS attacks, they have a tier4 datacenter or centers. They have fast support from what I've heard. There's little complaints if any on the web about them and they are huge. They offer control panels if you want them which allow you to run your sites however you wish. That's just not the case with some of these adult host that don't have control panel options.
I could go on but that's enough.
